CN108083483A - A kind of papermaking or the decoloration treatment method of dyeing waste water - Google Patents
A kind of papermaking or the decoloration treatment method of dyeing waste water Download PDFInfo
- Publication number
- CN108083483A CN108083483A CN201611019505.8A CN201611019505A CN108083483A CN 108083483 A CN108083483 A CN 108083483A CN 201611019505 A CN201611019505 A CN 201611019505A CN 108083483 A CN108083483 A CN 108083483A
- Authority
- CN
- China
- Prior art keywords
- waste water
- flocculant
- papermaking
- treatment method
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000011282 treatment Methods 0.000 title claims abstract description 32
- 238000004043 dyeing Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000005189 flocculation Methods 0.000 claims abstract description 25
- 230000016615 flocculation Effects 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 239000013049 sediment Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 10
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 8
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 5
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 5
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Substances [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010842 industrial wastewater Substances 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000003814 drug Substances 0.000 description 32
- 239000010865 sewage Substances 0.000 description 26
- 239000010802 sludge Substances 0.000 description 20
- 238000012545 processing Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000123 paper Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- 239000000835 fiber Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- -1 alum Chemical compound 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000000701 coagulant Substances 0.000 description 5
- 238000005345 coagulation Methods 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 5
- 239000008394 flocculating agent Substances 0.000 description 5
- 229920000620 organic polymer Polymers 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 229940037003 alum Drugs 0.000 description 4
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 4
- 239000010893 paper waste Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009300 dissolved air flotation Methods 0.000 description 3
- 238000005188 flotation Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229910020489 SiO3 Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- HJYUZIDYQOZTBZ-UHFFFAOYSA-J [K+].S(=O)(=O)([O-])[O-].[Al+3].NN.S(=O)(=O)([O-])[O-] Chemical compound [K+].S(=O)(=O)([O-])[O-].[Al+3].NN.S(=O)(=O)([O-])[O-] HJYUZIDYQOZTBZ-UHFFFAOYSA-J 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical compound [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 description 2
- DKFCNIGGENJIJN-UHFFFAOYSA-L aluminum;iron(2+);sulfate Chemical compound [Al+3].[Fe+2].[O-]S([O-])(=O)=O DKFCNIGGENJIJN-UHFFFAOYSA-L 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- OIDPCXKPHYRNKH-UHFFFAOYSA-J chrome alum Chemical compound [K]OS(=O)(=O)O[Cr]1OS(=O)(=O)O1 OIDPCXKPHYRNKH-UHFFFAOYSA-J 0.000 description 2
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 238000010563 solid-state fermentation Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 238000011949 advanced processing technology Methods 0.000 description 1
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000005031 sulfite paper Substances 0.000 description 1
- NIAGBSSWEZDNMT-UHFFFAOYSA-M tetraoxidosulfate(.1-) Chemical compound [O]S([O-])(=O)=O NIAGBSSWEZDNMT-UHFFFAOYSA-M 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to Industrial Wastewater Treatments, and in particular to the decoloration treatment method of a kind of papermaking or dyeing waste water.The solution of the present invention comprises the following steps：(1) pre-process to the PH ﹥ 9 of waste water；(2) flocculation sediment：It adds in flocculant and flocculation sediment is carried out to pretreated waste water, the addition of flocculant and the ratio of wastewater quality are 1：1000~100000, the separation of solid and liquid after flocculation is stablized；(3) decolourize：After separation of solid and liquid, to supernatant decoloring reaction；(4) flocculation sediment again：Flocculant is added after decoloration, flocculation sediment is carried out to pretreated waste water, flocculated to solution, the addition of flocculant and the ratio of wastewater quality are 1：1000~100000, the separation of solid and liquid after flocculation is stablized；(5) water quality detection is carried out to separated liquid, until colourity water quality up to standard.The method good decolorizing effect of the present invention, and it is easy to operate, it is at low cost.
Description
Technical field
The present invention relates to Industrial Wastewater Treatments, and in particular to the decoloration treatment method of a kind of papermaking or dyeing waste water.
Background technology
With global industry and the development of urbanization, the mankind are to natural resources exploitation and utilize in scale and intensity not
Disconnected to expand, the three industrial wastes of generation are more and more, and this three industrial wastes have seriously affected people’s lives environment, therefore, such as
The problem of what curing "three waste" protection people’s lives environment is always a puzzlement world.
Two production processes of slurrying and copy paper of paper waste in paper industry production.Slurrying is that plant is former
Fiber separation in material comes out, and slurry is made, then through bleaching；Copy paper is pulp dilution, shaping, squeezing, drying, and paper is made
.This two techniques all discharge a large amount of waste water.The waste water that slurrying generates, pollution are the most serious.Waste water is discharged during pulp washing in dark brown
Color is known as Heisui River, and pollutant concentration is very high in Heisui River, and BOD is up to 5-40g/L, contains a large amount of fibers, inorganic salts and pigment.Drift
The waste water of white process discharge also contains substantial amounts of acid-base material.The waste water of paper machine discharge, is known as plain boiled water, wherein containing a large amount of fine
The filler and sizing material that peacekeeping is added in process of production.The processing of paper-making industrial waste water, which should focus on, improves cycling use of water rate, subtracts
Few water consumption and wastewater discharge, while should also try to explore various reliable, economy and useful money in waste water can be made full use of
The processing method in source.Such as fibroid solid matter in the recyclable plain boiled water of floatation, up to 95%, primary water can return the rate of recovery
With；Sodium hydroxid, vulcanized sodium, sodium sulphate and other sodium salts combined with organic matter in the recyclable Heisui River of combustion method.Neutralisation
Adjust pH value of waste water；Coagulating sedimentation or floatation can remove suspended solid in waste water；Chemical precipitation method can decolourize；Biological treatment
BOD is can remove, it is more effective to brown paper waste water；Wet oxidation process processing sulfite paper pulp waste water is more successful.In addition, both at home and abroad
Also have using processing methods such as reverse osmosis, hyperfiltration, electrodialysis.
Dyeing waste water is the waste water of printing and dyeing mill's discharge based on processing cotton, fiber crops, chemical fibre and its blending product.Printing and dyeing are useless
Water water is larger, per 1 ton of dyeing and printing process, 100~200 tons of textile water consumption, wherein 80~90% become waste water.Textile printing and dyeing is given up
Water has the characteristics that water is big, organic pollution content is high, alkalescence is big, change of water quality is big, belongs to one of intractable industrial wastewater,
Contain dyestuff, slurry, auxiliary agent, finish, soda acid, fiber impurity, sand class substance, inorganic salts etc. in waste water.Common administering method
There are recycling and harmless treatment.
But not only cost is higher for the processing method of existing papermaking and printing and dyeing industrial waste water, and all there are one most to make us
The problem of headache --- it cannot thoroughly decolourize, treated, and waste water still carries color.
The content of the invention
The present invention provides a kind of papermaking or print to solve the problems, such as that current papermaking and printing and dyeing industrial waste water can not thoroughly decolourize
Contaminate the decoloration treatment method of waste water.
The scheme of the invention is comprise the following steps：
(1) pre-process：NaOH, Na are added in into waste water2CO3、Ca(OH)2One or more, adjust the PH ﹥ 9 of waste water；
(2) flocculation sediment：Then the one or more in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide are added in
Combination flocculant carries out pretreated waste water flocculation sediment, and the addition of flocculant and the ratio of wastewater quality are 1：1000
~100000, the separation of solid and liquid after flocculation is stablized；
(3) decolourize：After separation of solid and liquid, Al is added in into supernatant2(SO4)3、AlCl3、FeSO4、NaNO2In one kind or
A variety of decolorising agents carry out decoloring reaction；
(4) flocculation sediment again：One kind in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide is added after decoloration
Or multiple combinations flocculant carries out flocculation sediment to pretreated waste water, flocculates to solution, the addition of flocculant with
The ratio of wastewater quality is 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
(5) water quality detection, color standard are carried out to separated liquid：≤ 50mg/L if colourity is up to standard, then decolourizes to complete；
As colourity is not up to standard, and pH value ﹤ 6, then after adjusting pH value by step (1), step (3) is repeated, (4) are decolourized and flocculated,
PH value is made to reach 6~8, colourity reaches water quality up to standard；As colourity is not up to standard, and pH value ﹥ 8, then repeat (3), (4) reach pH value
To 6~8, that is, reach colourity water quality up to standard；As colourity is not up to standard, and pH value is 6~8, then repeatedly step (3) until colourity reaches
Mark.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 9.5~11.5.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 10~14.
Another priority scheme of the present invention is that the PH that step (1) pretreatment adjusts waste water is 10.1~10.3.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：5000
~50000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：10000
~30000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：15000
~20000.
Another priority scheme of the present invention is that the addition of step (4) flocculant and the ratio of wastewater quality are 1：5000
~50000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：10000
~30000.
Another priority scheme of the present invention is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：15000
~20000.
Another priority scheme of the present invention is step (1) pretreatment：The PH ﹥ that sodium metasilicate adjusts waste water are added in into waste water
9；
Another priority scheme of the present invention is step (1) pretreatment：Sodium acid carbonate or ammonium hydroxide tune are added in into waste water
Save the PH ﹥ 10 of waste water；
Another priority scheme of the present invention is step (1) pretreatment：The PH that tertiary sodium phosphate adjusts waste water is added in into waste water
﹥ 10；
Another priority scheme of the present invention is step (2) flocculation sediment：Add in Sodium Polyacrylate, poly bis cyanamide, polycyclic oxygen
One or more combination flocculants of ethane carry out flocculation sediment to pretreated waste water；The ratio of addition and wastewater quality
For 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
Another priority scheme of the present invention is that step (5) such as pH value ﹥ 8, and colourity is not up to standard, then adds in potassium bichromate, again
Sodium chromate, chrome alum chromalum, phosphotungstic acid, nitrous acid aluminium, aluminum sulfate (Al2(SO4)3), copper sulphate, ferric sulfate, ferrous sulfate, aluminum nitrate
(Al(NO3)3), ferric nitrate, alumina silicate (Al3(SiO3)3), aluminium sulfide (Al2S3), alchlor, cobaltous sulfate, cobalt nitrate, chlorination
Cobalt, ferric trichloride, alum, hydrazine aluminum sulfate potassium (Al2(SO4)3·K2SO4·nH2O), alum, aluminium iron sulfate, poly-
One or more of ferric sulfate, aluminium polychloride is closed to decolourize.
Another preferred embodiment of the present invention is step (3) Al2(SO4)3、AlCl3、FeSO4、NaNO2In one or more
When carrying out decoloring reaction, potassium bichromate or sodium dichromate are also added in simultaneously, and potassium bichromate or sodium dichromate can promote above-mentioned de-
The decoloration function of toner, greatly enhances decolorizing effect.Chrome alum chromalum, phosphotungstic acid, nitrous acid aluminium, aluminum sulfate (Al can also be added in2
(SO4)3), copper sulphate, ferric sulfate, ferrous sulfate, aluminum nitrate (Al (NO3)3), ferric nitrate, alumina silicate (Al3(SiO3)3), vulcanization
Aluminium (Al2S3), alchlor, cobaltous sulfate, cobalt nitrate, cobalt chloride, ferric trichloride, alum, hydrazine aluminum sulfate potassium (Al2
(SO4)3·K2SO4·nH2O), one or more of alum, aluminium iron sulfate, bodied ferric sulfate, aluminium polychloride progress
Collaboration decoloration.
The technique of the present invention has the following advantages：First, equipment operation is easy；Second, project investment is few；3rd, device
It is high to run treatment effeciency；4th, the features such as sewage disposal unit consumption is low, operating cost is low, the 5th, easy to operate, human cost is low,
6th, it solves the problems, such as to perplex papermaking and the decoloration for the treatment of of dyeing wastewater not to the utmost always.
Specific embodiment
Specific embodiments of the present invention presented below, to help the present invention, but protection scope of the present invention is further understood
It is not limited in these embodiments.
Embodiment 1
The sewage in Hunan city paper mill is mainly derived from the sewage discharged during shop production line production, Wastewater Pollutant
Mainly there are following several respects：SS、COD、BOD5, colourity.COD and BOD5Essentially from the lignin and hemicellulose of waste water；It is tiny
Fiber, inorganic filler etc. primarily form SS；Ink, organic pigment, dyestuff primarily form colourity and COD.Such sewage it is main
Feature is：Colourity is big and containing substantial amounts of organic pollution and suspended matter, if the directly outer row of these sewage not only pollutes environment
Also waste precious water resource.
The existing sewage treatment process in the paper mill：Its treatment process be a materialization air-flotation process technique, principle be
Under certain pressure (0.35~0.45Mpa), suitable air is sucked by ejector, is formed and satisfied in dissolving with recirculation water
With molten gas carrier, gather so decompression release through release and obtain substantial amounts of micro air bubble, measurement, granularity, stability are all most
Within good value.Bubble attaches to rapidly the impurity such as particle, oil emulsion, the fiber in water and the flco formed through coagulating, makes
Into flco state having a specific gravity smaller than that of water, and it is forced to bubble through the water column rapidly, so as to fulfill separation of solid and liquid.Slag is bubbled through the water column and is scraped
It walks, and separates water and filtered water tank is then entered by bottom perforated pipe, dissolved air water is made in water reflux in part, and clear water is then arranged by valve
Go out.But decoloration is not thorough, processing is incomplete.The technique for thus using the present invention instead.
The treatment process of the present embodiment is as follows：
(1) parameters of engineering design
1. sewage disposal water
Existing waste paper pulp-making production firecracker paper comprehensive wastewater 400m3/ d, COD content 8000-9000mg/L；SS contents
More than 2000mg/L；Colourity is big, difficult.
2. sewage disposal device handles import water quality parameter
Water inlet sewage quality：
CODcr：8200-10000mg/L
SS：2500-3000mg/L
Colourity：480-550 times
PH：4-6
3. sewage disposal device processing outlet water quality parameter
3.1 pretreatment effluent qualities：
CODcr：≤3000mg/L
SS：≤200mg/L
Colourity：≤ 250 times
PH：10-12
3.2 physicochemical techniques effluent qualities：
CODcr：≤1500mg/L
SS：≤100mg/L
Colourity：≤ 170 times
PH：7-9
3.3 2 materializing strategy Process for Effluent water quality：
CODcr：≤800mg/L
SS：≤30mg/L
Colourity：≤50mg/L
PH：6-9
3.4 final collection treatment process effluent qualities：
CODcr：≤120mg/L
SS：≤30mg/L
Colourity：≤50mg/L
PH：6-9
(2) design specification and principle
2.1 design specification
Design, manufacture, inspection and experiment of sewage disposal device etc. meet the requirement of the related codes and standards of country,
It is main to include with lower part (but not limited to)：
Electrical design is in accordance with National Standard of the People's Republic of China
《Code for fire protection design of buildings》GBJ16-87 (2001 editions)
Or the requirement of local Environmental Protection Agency：
(3) technological process
3.1 sewage treatment process principles
In following steps, A medicaments are NaOH, it is also possible to Na2CO3Or Ca (OH)2, B medicaments are that PAM, C medicament are polypropylene
Sour sodium, D medicaments are poly bis cyanamide, and E medicaments are Al2(SO4)3, it is also possible to AlCl3、FeSO4Or NaNO24。
3.1.1 the pretreatment of sewage
It is faintly acid waste water that sewage is discharged from paper machine room, and contains substantial amounts of suspended matter, ammonia nitrogen compound, phosphorous chemical combination
Object, solubility COD, BOD5.A medicaments are added in the sewage, the pH value of sewage is transferred to 9-11, goes to the part in water removal insoluble
Suspended solid, colloidal ion, phosphorus compound, organic matter and metal cation, while adjust carbonate hardness and acid-base value in water.
A medicaments are Ca (OH)2, the free acid in waste water can be effectively neutralized for wastewater in papermaking with waste paper processing；Neutralize waste water
In ackd salt；Hydroxide ion is provided, insoluble hydroxide precipitation is directly generated with metal ion reaction, remove big portion absolutely
Divide toxic metals cation；Meanwhile as acid water treatment agent, can effectively remove phosphate radical, sulfate radical and fluorine ion etc. it is cloudy from
Son.In addition, it in addition to coagulating sedimentation, deacidification, A medicaments make as coagulant with organic polymer coargulator collocation
With, also have good cohesion, to degrade solubility COD, promote insoluble ammonia nitrogen compound precipitation all have well imitate
Fruit.In order to be more convenient to operate, Ca (OH) is being used2When, calcium oxide can be used to be added directly into waste water to generate as raw material
Ca(OH)2。
3.1.2 the removal of suspended matter
To adding coagulant in sewage (or flocculant), the high polymer formed by coagulant poly-condensation and hydrolysis
Strong adsorption bridging action makes micelle be bonded by absorption.During Coagulation Process contains cohesion and two stages of flocculation, agglomerates rank
Section forms smaller particle, then by flocculating to form larger flco.Wadding particle shape into the process, can not only adsorb suspend
Grain, moreover it is possible to adsorb a part of bacterium and dissolving substance.Wadding grain can be separated from the water under certain deposition condition, settle.This
Scheme is generated a large amount of microbubbles by dissolved air flotation device, makes waste water using B medicaments, C medicaments, D medicaments as efficient flocculant
Middle suspended particulate forms floccule body and sticks with microbubble, so that floc density declines, and makes its floating by buoyancy, reaches
The purpose of separation of solid and liquid.
3.1.3 the depth removal of Colority of Sewage Water, COD, BOD
For organic molecule, since the active force between group is larger, the influence phase of molecule hydrolysis after water is dissolved in
To smaller, molecular structure is more stable, because, containing a large amount of hydrophilic radicals, ensure that its is preferable water-soluble in its strand,
Related functional group is such as introduced in flocculating agent molecule；Using the neutralization of its absorption surface charge, the charge in waste water is neutralized
And make the organic suspended matters elimination of colloid stability such as COD.Its requirement is that charged group enriches, and such as introduces various ammonium salts, carboxylic in the molecule
Hydrochlorate etc.：Line style organic polymer coargulator, using adsorption bridging principle, is greatly improved soluble organic in wastewater treatment
Object treatment effect.
This technology designing scheme for regenerated papermaking COD, BOD complicated component, and contains azo-compound organic pigment
Feature adds in the flocculants such as the related functional group organic polymer E medicaments for being conducive to COD removals, D medicaments, B medicaments, utilizes height
The principle of charge density effect, neutralizes the charge in waste water and organic colloid is made to take off steady degradation, and adsorbed and wadded a quilt with cotton by cationic PAM
It is solidifying, reach removal COD and decoloration purpose.
3.1.4 Solid state fermentation
It is mixed by the sludge that settlement separator, dissolved gas floatator are isolated with certain density flocculant in quiet, dynamic
After being sufficiently mixed in device, the minute solid particles coacervation in sludge isolates freedom into the larger cotton-shaped agglomerate of volume
Water, the sludge after flocculation are transported on the strainer of concentration gravity dehydration, and Free water is separated under gravity, are formed not
Then the sludge of flow regime is clamped in up and down between two guipures, by wedge-shaped precompressed zone, low-pressure area and higher-pressure region by it is small to
Under big extruding force, shearing force, sludge is progressively squeezed, to reach maximum mud, water separates, and eventually forms filter cake row
Go out outward transport processing.
3.2 specific steps
3..2..1 pre-process
The waste water that each production line of paper plant generates is pumped into even regulation pond through sewage pump, carries out homogeneous adjusting, homogeneous tune
Waste water after section is promoted through sewage pump, after A medicaments and medicament B flocculant coagulations is added in, into settlement separator, in sedimentation point
Abundant flocculation reaction is carried out from device, larger molecular organics, paper fiber are attached on alumina blossom particles and settle, so as to divide with waste water
From precipitation solid slag is discharged from separator bottom, and precipitation solid slag can be back to copy paper production, be carried out after can also being emitted into slurry pond
Outward transport is handled after filter-press dehydration；Supernatant enters from the overflow of settlement separator top to be handled in next step.
3..2..2 a materializing strategy
The pending waste water of materializing strategy regulating reservoir is pumped into vortex dissolved-air floatation machine through sewage pump, in air floatation machine inlet tube
Three tube mixers are accessed on road and are separately added into medicament C solution, medicament solution D, B medicaments, is fully chemically reacted, suspended
The removal of object is that coagulant (or flocculant) is added in into water, the high polymer formed by coagulant poly-condensation and hydrolysis
Strong adsorption bridging action makes micelle be bonded by absorption.During Coagulation Process contains cohesion and two stages of flocculation, agglomerates rank
Section forms smaller particle, then by flocculating to form larger flco.Wadding particle shape into the process, can not only adsorb suspend
Grain, moreover it is possible to adsorb a part of bacterium and dissolving substance.Wadding grain can be separated from the water under certain deposition condition, settle.This
Then scheme, is squeezed into dissolved gas floatator by elevator pump, carries out air supporting solid-liquid using flocculants such as medicament C, medicament D, medicament B
Separation, it is pending that air-flotation scum flows directly into sludge collecting pit, and air supporting clear liquid is prepared to enter into down one from decoloration regulating reservoir is flow to
Process carries out secondary materialization decolorization.
3..2..3 two materializing strategies
According to this technology designing scheme, air supporting water outlet SS and colourity have been lowered to less than 50, and most of water can be direct
Reuse, remainder water enter decoloration regulating reservoir, and after decoloration regulating reservoir carries out Air Exposure, the molten gas of advection is pumped to by promotion
Air floatation machine is being mixed into adding in organic polymer special decoloring agent E, flocculant D, flocculating agent B step by step before advection dissolved gas floatator
Reaction is closed, most of organic polymer pigment, organic soluble COD and medicament carry out coagulating in dissolved gas floatator, lead to
It is separated after crossing air supporting.So as to achieve the purpose that remove COD, BOD, reduce colourity.Pneumatically supported scum silica frost is exhausted directly to sludge receipts
Ji Chi processing, clear liquid is treated to handle in next step from surge tank is flowed into after air supporting.
3..2..4 Strong oxdiative end collection is handled
Waste water after secondary materialization air-flotation process, then using strong oxidizer (such as Cl2) carry out oxidation removal macromolecule have
Machine object, further to remove COD, BOD, ammonia nitrogen etc..
3.2.5 Solid state fermentation
Sedimentation separation solid-liquid separation waste residue, vortex dissolved-air floatation machine scum silica frost, the gravity flow of advection dissolved gas floatator scum silica frost are collected
To sludge collecting pit, focused on.
This programme using sludge pump by sludge in sludge collecting pit with being pumped to belt filter press sludge treating system, in order to
The dehydration property of sludge is improved, improves the property of filter cake, increases the permeability of material, materializing strategy need to be carried out to sludge, conveyed
Flocculant is added in into the sludge before filter press.
Sludge is uniformly sent into guipure through cloth bucket, and sludge is moved forwards with strainer, and free state water passes through under Gravitative Loads
Strainer flows into water receiving tank, and gravity dehydration could also say that highly concentrated section, and main function is the Free water sloughed in sludge, makes dirt
The mobility of mud reduces, to be pressed further by preparing.
Sludge mobility after gravity dehydration is almost lost, with moving forwards for belt filter press strainer, up and down
Strainer spacing gradually decreases, and material starts to be subject to light pressure, and as strainer is run, pressure gradually increases, the work of tapered region
With being to extend the gravity dehydration time, increase the extrusion stability of floc sedimentation, to prepare into pressure area.
Material departs from tapered region and is put into pressure area, and material is squeezed in this area, along strainer traffic direction pressure with crowded
The reduction of pressure roller diameter and increase, material is squeezed volume contraction, and the gap free water in material is extruded, at this point, substantially
Filter cake is formed, proceeding to the water content of higher-pressure region filter cake after high pressure of pressure afterbody can minimize.
Moisture percentage in sewage sludge is about 70% after processing, and sludge outward transport processing, clear liquid are back to pretreatment regulating reservoir after processing.
The 3.3 sewage disposal solution process features
3..3..1 the requirement of qualified discharge after the characteristics of being directed to this plant chimney stalk and processing, with reference to my company to the waste water
On the basis of investigation, lab scale analysis, we take following monotechnics optimum organization technique：It is acid-base neutralization, coagulation, air supporting, heavy
It forms sediment, filter, decolorising agent cooperates with decoloration with flocculant, drops the techniques such as COD.The technique core processing technology of the engineering is：Pretreatment
Technology and secondary physico-chemical process treatment technology.
3..3..2 physico-chemical process forms with the polluter in waste water mainly by adding appropriate medicament and flocculates and lead to
Cross dissolved air flotation device to be removed, which handled using coagulation dissolved air flotation, SS removal rates up to 96%~99%,
Chroma removal rate is up to more than 80%, and part macromolecule organic suspended matter is removed by secondary materializing strategy, secondary materializing strategy
Depending on effluent quality requirement, for COD, BOD removal rate up to more than 90%, chroma removal rate is more than 95%.Final outflow water is made to reach row
Standard is put, while meets user's recycle-water requirement.
3..3..3 technological advantage：
1. it is simple for process, start soon, equipment operation is simple and convenient, safeguards that simply the medicament of addition is cheap, and market is adopted
Purchaser is just；
2. materialization separation solid slag can reuse, not only make full use of resource, but also can increase economic efficiency；
3. system adapts to, change of water quality ability is strong, and stable effluent quality is good, and water quality treatment amount is high, and water outlet is as clear as crystal,
Reach discharging standards；
(4) each workshop section's treatment effect of engineering design and reuse water
(5) economic and technical norms
10.1 technical economic analyses
5.1.1 the sewage-treatment plant sewage treatment drug consumes：
Medicament A:0.30~0.35 yuan/m3；Medicament B:0.18~0.21 yuan/m3；
Medicament C:0.08~0.10 yuan/m3；Medicament D:0.5~0.66 yuan/m3；
Medicament E:8.38~12.5 yuan/m3；
5.1.2 the sewage-treatment plant power consumption：
Installed capacity is：(4.5+5.5+1.5+0.55+0.55)=12.6KW, operating load 9.55KW, electricity price press 0.65
Member/kw.h, then power consumption be：9.55 × 0.65/70=0.09 members/m3。
5.1.3 system always runs medicament expense and is：
Pre-process cost：0.55 yuan/m3
Materializing strategy cost：1.8 member/m3
Secondary materializing strategy cost：8.58 yuan/m3
Strong oxdiative processing cost：9.5 yuan/m3
5.1.4 after the project implementation every year can 1.5 ten thousand tons of recycle-water, year wound effect 1.5 ten thousand yuan.
5.2 social benefits are analyzed
The technique of the present invention is advanced processing technology routine, and production technology is clean production method, can accomplish row up to standard
It puts, after engineering construction, can significantly cut down suspended matter in sewage, COD discharge capacitys, complete decoloration be realized to waste water, to factory
Surrounding body environment, living environment, which improve, plays good exemplary role, and factory is made really to realize green production, is gone on sustainable
The road of development.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention and from above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of papermaking or the decoloration treatment method of dyeing waste water, it is characterized in that, comprise the following steps：
(1) pre-process：NaOH, Na are added in into waste water2CO3、Ca(OH)2One or more, adjust the PH ﹥ 9 of waste water；
(2) flocculation sediment：Then one or more combinations in Sodium Polyacrylate, poly bis cyanamide, PAM, polyethylene oxide are added in
Flocculant carries out pretreated waste water flocculation sediment, and the addition of flocculant and the ratio of wastewater quality are 1：1000~
100000, the separation of solid and liquid after flocculation is stablized；
(3) decolourize：After separation of solid and liquid, Al is added in into supernatant2(SO4)3、AlCl3、FeSO4、NaNO2In one or more
Carry out decoloring reaction；
(4) flocculation sediment again：Sodium Polyacrylate, poly bis cyanamide, PAM, one kind in polyethylene oxide or more are added after decoloration
Kind combination flocculant carries out flocculation sediment to pretreated waste water, flocculates to solution, the addition and waste water of flocculant
The ratio of quality is 1：1000~100000, the separation of solid and liquid after flocculation is stablized；
(5) water quality detection, color standard are carried out to separated liquid：≤ 50mg/L if colourity is up to standard, then decolourizes to complete；Such as color
Degree is not up to standard, and pH value ﹤ 6, then after adjusting pH value by step (1), repeats step (3), (4) are decolourized and flocculated, and makes PH
Value reaches 6~8, and colourity reaches water quality up to standard；As colourity is not up to standard, and pH value ﹥ 8, then repeat (3), (4) make pH value reach 6
~8, that is, reach colourity water quality up to standard；As colourity is not up to standard, and pH value is 6~8, then repeatedly step (3) until colourity is up to standard.
2. the decoloration treatment method of papermaking or dyeing waste water according to claim 1, it is characterized in that, step (1) pretreatment is adjusted
The pH value for saving waste water is 9.5~11.5.
3. the decoloration treatment method of papermaking or dyeing waste water according to claim 1, it is characterized in that, step (1) pretreatment is adjusted
The pH value for saving waste water is 10~14.
4. the decoloration treatment method of 3 papermaking or dyeing waste water is wanted according to right, it is characterized in that, step (1) pretreatment is adjusted
The pH value of waste water is 10.1~10.3.
5. according to the decoloration treatment method of papermaking or dyeing waste water, feature described in Claims 1-4 any one claim
It is that the addition of step (2) flocculant and the ratio of wastewater quality are 1：5000~50000.
6. the decoloration treatment method of papermaking or dyeing waste water according to claim 5, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：10000~30000.
7. the decoloration treatment method of papermaking or dyeing waste water according to claim 6, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：15000~20000.
8. according to the decoloration treatment method of papermaking or dyeing waste water, feature described in Claims 1-4 any one claim
It is that the addition of step (4) flocculant and the ratio of wastewater quality are 1：5000~50000.
9. the decoloration treatment method of papermaking or dyeing waste water according to claim 7, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：10000~30000.
10. the decoloration treatment method of papermaking or dyeing waste water according to claim 9, it is characterized in that, step (2) flocculant
Addition and the ratio of wastewater quality are 1：15000~20000.
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